The SLM series loudness meters are portable desktop units that display the average (VU) and peak (PPM) content of an audio signal simultaneously.The meter includes a pair of “sticky”peak LEDs (for each stereo pair) that may be set to display peaks that exceed a preset limit, a phase correlation meter and status LEDs to display lock to signal or error.

The SLM meters are available in models that may be used to monitor either analog or AES digital audio signals.The meter packages that are offered includes the SLM1, a stereo meter pair; the SLM2, a dual stereo meter pair and; the SLM4, a quad stereo meter pair. Each stereo pair in the SLM1 and SLM2 has its’ own seven segment LED phase indicator. The SLM4 has an expanded (28 segment) LED phase indicator that may selectively be assigned to any one of the four meter pairs. SLM meters may
be ordered as “A” versions for analog audio or “D” versions for AES audio, specify requirement for balanced (110 Ohm) or unbalanced (75 Ohm) AES digital audio inputs.

*analog rear panel shown